How much final fuel reserve is required for air transport turbine flights?

For air transport turbine flights, the requirement for final fuel reserve is specified as enough fuel to fly for 30 minutes at holding speed at a height of 1,500 feet above the intended landing site, taking into account any diversions. This regulation is established to ensure safety and provides a safeguard for unexpected circumstances, such as bad weather or air traffic control delays.

When a flight encounters critical situations that necessitate a diversion to an alternate airport or if landing is delayed, having the equivalent of 30 minutes of reserve fuel allows for sufficient time to safely reach a landing point without risking a fuel shortage. This "final reserve" fuel acts as a critical buffer, ensuring that pilots can manage emergencies effectively while still adhering to safety regulations set by aviation authorities.